I found what looks to be a GBA flashcard with the sticker saying "M3 Micro SD".
I can't find much information about it online and I'm confused about what this is used for and how I would use it. The biggest question I have is do I need to have a corresponding DS flashcard in order to use it? If so, I'm assuming something like an R4 wouldn't work. All the information I found on this thing shows it being used with DSs and not GBAs so I'm assuming it doesn't work on GBAs? If someone could answer these questions and also point me to whatever firmware I need to use the card, I would greatly appreciate it!
I can't find much information about it online and I'm confused about what this is used for and how I would use it. The biggest question I have is do I need to have a corresponding DS flashcard in order to use it? If so, I'm assuming something like an R4 wouldn't work. All the information I found on this thing shows it being used with DSs and not GBAs so I'm assuming it doesn't work on GBAs? If someone could answer these questions and also point me to whatever firmware I need to use the card, I would greatly appreciate it!